EP0657478A2 - Procédé de préparation de dispersion de polymères solubles dans l'eau - Google Patents

Procédé de préparation de dispersion de polymères solubles dans l'eau Download PDF

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Publication number
EP0657478A2
EP0657478A2 EP94119536A EP94119536A EP0657478A2 EP 0657478 A2 EP0657478 A2 EP 0657478A2 EP 94119536 A EP94119536 A EP 94119536A EP 94119536 A EP94119536 A EP 94119536A EP 0657478 A2 EP0657478 A2 EP 0657478A2
Authority
EP
European Patent Office
Prior art keywords
meth
carbon atoms
group
general formula
acrylamide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94119536A
Other languages
German (de)
English (en)
Other versions
EP0657478A3 (fr
Inventor
Darrell L. Werges
Manian Ramesh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of EP0657478A2 publication Critical patent/EP0657478A2/fr
Publication of EP0657478A3 publication Critical patent/EP0657478A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C08F220/36—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52—Amides or imides
    • C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/60—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen
    • C08F220/603—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing nitrogen in addition to the carbonamido nitrogen and containing oxygen in addition to the carbonamido oxygen and nitrogen

Definitions

  • the present invention relates to the novel process for the production of a dispersion of a water soluble polymer.
  • This process for the production of a water soluble dispersion includes the polymerization of water soluble monomers of 5 to 100 mole % of a cationic monomer represented by the following formula (I), 0 to 50 mole % of another cationic monomer represented by the following formula (II) and 0 to 95 mole % (meth)acrylamide in the presence of 1 to 10% by weight of an organic high molecular multivalent cation comprising a water soluble polymer containing at least a monomer of formula (II) (i.e., a hydrophilic monomer), based on the total weight of the monomers, in an aqueous multivalent anionic salt solution having a concentration of 15% by weight or more: where R1 is either hydrogen or CH3; R2 and R3 are each an alkyl group having 1 to 3 carbon atoms; A1 is either an oxygen atom or NH; B1 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group, and X1
  • the water soluble cationic polymer that is insoluble in the aqueous solution of polyvalent anionic salt contains at least 5 mole % of cationic monomer units represented by the aforementioned general formula (I) above and the water soluble cationic polymer that is soluble In the aqueous solution of a polyvalent anionic salt contains at least 20 mole % of cationic monomer units represented by the general formula (II) above.
  • the multivalent anionic salt concentration can be optimized to control process viscosity.
  • This optimization of the multivalent anionic concentration has been demonstrated to control the particle size as well as facilitate the precipitation process by very significantly reducing the process viscosity.
  • This allows the production of high molecular weight polymer dispersions in a low viscosity reactor, thereby avoiding the substantial costs associated with high viscosity custom built polymerization reactors.
  • the reduction In process viscosity will allow the preparation of polymer systems containing higher actives (such as, from 15 to about 30 percent by weight or above) in high viscosity latex-type reactors.
  • the dispersion is prepared by polymerizing a water soluble mixture of from about 15 to about 30% percent by weight of a cationic monomer represented by the following general formula (I): where R1 is either hydrogen or CH3; R2 and R3 are each an alkyl group having 1 to 3 carbon atoms; A1 is either an oxygen atom or NH; B1 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group, and X1 ⁇ is an anionic counterion, and/or a second cationic monomer represented by the following general formula (II): where R4 is either hydrogen or CH3; R5 and R6 are each an alkyl group having 1 to 2 carbon atoms; R7 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; A2 is either an oxygen atom or NH; B2 is either an alkylene group having
  • the present invention is particularly useful in processes for preparing a water soluble polymer dispersion.
  • the dispersion is prepared by polymerizing a water soluble mixture of a cationic monomer represented by the following general formula (I): where R1 is either hydrogen or CH3; R2 and R3 are each an alkyl group having 1 to 3 carbon atoms; A1 is either an oxygen atom or NH; B1 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropylene group, and X1 ⁇ is an anionic counterion, and/or a second cationic monomer represented by the following general formula (II): where R4 is either hydrogen or CH3; R5 and R6 are each an alkyl group having 1 to 2 carbon atoms; R7 is a hydrogen atom or an alkyl group having 1 to 2 carbon atoms; A2 is either an oxygen atom or NH; B2 is either an alkylene group having 2 to 4 carbon atoms or a hydroxypropy
  • the (meth)acrylamide is typically present in an amount in the range between about 20 to about 95 mole %, the cationic monomer represented by the general formula (I) is typically present in an amount between about 5 to about 50 mole %; and the cationic monomer represented by the general formula (II) is typically present in an amount between about 5 to about 50 mole %.
  • the use of the cationic monomer represented by the general formula (II) is optional.
  • the dispersant system of the invention is present in an amount between about 2.5 to about 6 weight %, based on the total weight of the monomers of the dispersion.
  • Examples of monomers represented by the general formula (I) include quaternary monomers obtained by treating dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylamide and dimethylhydroxypropyl (meth)acrylate, diethylaminopropyl (meth)acrylamide and dimethylaminohydroxylpropyl (meth)acrylate with benzyl chloride.
  • One preferred monomer is N-benzyl-N-(meth)acryloxyethyl-N,N-dimethylammonium chloride.
  • Examples of monomers represented by the general formula (II) include salts such as dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylamide, diethylaminopropyl (methyl)acrylamide and dimethylhydroxypropyl (meth)acrylate, and methylated and ethylated quaternary salts.
  • One preferred monomer is N-(meth)acryloyloxyethyl-N,N,N-trimethyl ammonium chloride.
  • the polymer initiator is selected from the group consisting of 2,2'-azobis(2-amidinopropane) hydrochloride (V50), ammonium persulfate, 2,2'-azobis (N,N'-dimethylene isobutyramidine) dihydrochloride (VA044), and ammonium persulfate/sodium meta bisulfite.
  • the inventors have discovered that process viscosities can be carefully controlled by controlling the concentration of the multivalent anionic salt used to deposit the polymer of the present invention.
  • the multivalent anionic salt in the present invention is preferably a sulfate or a phosphate, and typical examples of these salts include ammonium sulfate, sodium sulfate, magnesium sulfate, aluminum sulfate, ammonium hydrogenphosphate, sodium hydrogenphosphate and potassium hydrogenphosphate.
  • the salt is used in the form an aqueous salt solution at a concentration of from about 17 to about 19 by weight, more preferably 17.0 to about 17.50 percent by weight and most preferably, about 17.20 percent by weight.
  • the concentration of the multivalent anionic salt permits the use of conventional latex reactors since the process viscosity during polymerization is maintained below about 25,000 cp, more preferably below about 15,000 cp and most preferably about 5,000 cp.
  • the present inventions have determined that an aqueous salt concentration during the polymerization, of more than 19 percent by weight or less than 17 percent by weight produces process viscosities which are too great for low viscosity reactors to handle.
  • the monomer mixture, water, ammonium sulfate, benzyl alcohol and versene are added in a batch reactor.
  • the contents were heated to 48°C and, thereafter, nitrogen purged.
  • Polymerization initiator, V-50 was added to the batch reactor. After the addition, the reactants were held in the reactor for four hours at 48°C.
  • the reaction products were cooled to room temperature and post reaction addition of ammonium salt were added to prevent polymer degradation and, optionally, acetic acid and ammonium thiocyanate.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Colloid Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP94119536A 1993-12-09 1994-12-09 Procédé de préparation de dispersion de polymères solubles dans l'eau. Withdrawn EP0657478A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16377993A 1993-12-09 1993-12-09
US163779 1993-12-09

Publications (2)

Publication Number Publication Date
EP0657478A2 true EP0657478A2 (fr) 1995-06-14
EP0657478A3 EP0657478A3 (fr) 1995-07-26

Family

ID=22591533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119536A Withdrawn EP0657478A3 (fr) 1993-12-09 1994-12-09 Procédé de préparation de dispersion de polymères solubles dans l'eau.

Country Status (6)

Country Link
EP (1) EP0657478A3 (fr)
JP (1) JPH07238121A (fr)
KR (1) KR950018176A (fr)
AU (1) AU8024794A (fr)
BR (1) BR9404916A (fr)
CA (1) CA2137637A1 (fr)

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5614602A (en) * 1996-07-09 1997-03-25 Betzdearborn Inc. Process for the preparation of aqueous dispersion polymers
US5696228A (en) * 1996-10-03 1997-12-09 Cytec Technology Corp. Process for producing substantially dry polymer particles from aqueous dispersions
US5733462A (en) * 1996-10-03 1998-03-31 Cytec Technology Corp. Cationic water-soluble polymer precipitation in salt solutions
US5738794A (en) * 1996-10-03 1998-04-14 Cytec Technology Corp. Cationic water-soluble polymer preciptation in salt solutions
US5792366A (en) * 1996-10-03 1998-08-11 Cytec Technology Corp. Aqueous dispersions
US5843320A (en) * 1996-10-03 1998-12-01 Cytec Technology Corp. Aqueous dispersions
FR2770527A1 (fr) * 1997-11-04 1999-05-07 Atochem Elf Sa Dispersions aqueuses salines de polymeres hydrosolubles contenant un dispersant amphiphile a base de polymere cationique ayant des motifs hydrophobes
US5919854A (en) * 1996-10-03 1999-07-06 Cytec Technology Corp. Process for preparing aqueous dispersions
US6013708A (en) * 1996-10-03 2000-01-11 Cytec Technology Corp. Cationic water-soluble polymer precipitation in salt solutions
US6020422A (en) * 1996-11-15 2000-02-01 Betzdearborn Inc. Aqueous dispersion polymers
WO2000011053A1 (fr) * 1998-08-24 2000-03-02 Green Technology Inc. Composition de dispersion polymere hydrophile contenant une silice colloidale, utile en tant qu'agent de retention de fines particules dans un systeme de fabrication de papier, et procede associe
WO2000011052A1 (fr) * 1998-08-24 2000-03-02 Green Technology Inc. Procede et composition de dispersion de polymeres hydrophiles contenant un floculant inorganique destine au traitement des eaux usees
WO2000069938A1 (fr) * 1999-05-12 2000-11-23 Creavis Gesellschaft Für Technologie Und Innovation Mbh Copolymeres microbicides
US6225395B1 (en) 1997-11-04 2001-05-01 Elf Atochem, S.A. Aqueous stable dispersions based on water-soluble polymers containing a cationic dispersant comprising hydrophobic units
US6365052B1 (en) 2000-03-21 2002-04-02 Nalco Chemical Company Very high molecular weight cationic dispersion polymers for dewatering animal farm wastewater
FR2815635A1 (fr) * 2000-10-23 2002-04-26 Snf Sa Dispersions aqueuses d'un polymere hydrosoluble, procede pour leurs preparations, et leurs applications
US6398967B2 (en) 2000-04-20 2002-06-04 Nalco Chemical Company Method of clarifying water using low molecular weight cationic dispersion polymers
US6608124B1 (en) 1996-10-03 2003-08-19 Cytec Technology Corp. Aqueous dispersions
WO2003085232A1 (fr) 2002-04-03 2003-10-16 Nalco Energy Services, L.P. Utilisation de polymeres de dispersion comme reducteurs de frottement dans des liquides de fracturation aqueux
US6664326B1 (en) 1996-10-03 2003-12-16 Cytec Technology Corp. Aqueous dispersions
US6702946B1 (en) 1996-10-03 2004-03-09 Cytec Technology Corp. Aqueous dispersions
US7091273B2 (en) 2002-05-07 2006-08-15 Akzo Nobel N.V. Process for preparing a polymer dispersion
CN100386363C (zh) * 2002-06-27 2008-05-07 湖北省化学研究所 高悬浮力水溶性防锈研磨液
US7641766B2 (en) 2004-01-26 2010-01-05 Nalco Company Method of using aldehyde-functionalized polymers to enhance paper machine dewatering
CN101016359B (zh) * 2007-03-06 2010-06-02 山东东方华龙工贸集团有限公司 阳离子型聚丙烯酰胺水乳液的制备方法
WO2010093847A1 (fr) 2009-02-13 2010-08-19 Nalco Company Composition antimicrobienne
WO2011075650A2 (fr) 2009-12-18 2011-06-23 Nalco Company Polymères fonctionnalisés par aldéhyde avec une stabilité accrue
US8709207B2 (en) 2010-11-02 2014-04-29 Nalco Company Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing
US8840759B2 (en) 2010-11-02 2014-09-23 Ecolab Usa Inc. Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing
WO2014164380A1 (fr) 2013-03-13 2014-10-09 Nalco Company Procédé d'utilisation de polymères à fonctionnalité aldéhyde pour augmenter les performances d'une machine à papier et améliorer l'encollage
WO2016004228A1 (fr) 2014-07-01 2016-01-07 Ecolab Usa Inc. Utilisation de polymères fluorescents dans des compositions de marquage permettant la détermination de diagnostic de réalisation de nettoyage
WO2016032844A1 (fr) * 2014-08-28 2016-03-03 Dow Global Technologies Llc Latex copolymères cationiques utiles en tant qu'additifs pour des applications de champ pétrolifère
US9702086B2 (en) 2014-10-06 2017-07-11 Ecolab Usa Inc. Method of increasing paper strength using an amine containing polymer composition
EP3275844A1 (fr) 2012-12-28 2018-01-31 Ecolab USA Inc. Monomères fluorescents pour la préparation de polymères de traitement marqués utiles dans des systèmes d'eau industriels
US9920482B2 (en) 2014-10-06 2018-03-20 Ecolab Usa Inc. Method of increasing paper strength
US9951475B2 (en) 2014-01-16 2018-04-24 Ecolab Usa Inc. Wet end chemicals for dry end strength in paper
US10006170B2 (en) 2015-08-06 2018-06-26 Ecolab Usa Inc. Aldehyde-functionalized polymers for paper strength and dewatering
CN108431058A (zh) * 2015-12-17 2018-08-21 巴斯夫欧洲公司 用于制备复合膜的低乳化剂含量的水性聚合物分散体
WO2018160818A1 (fr) 2017-03-01 2018-09-07 Ecolab Usa Inc. Assainisseurs et désinfectants à risques d'inhalation réduits par l'intermédiaire de polymères de poids moléculaire élevé
US10145067B2 (en) 2007-09-12 2018-12-04 Ecolab Usa Inc. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking
US10648133B2 (en) 2016-05-13 2020-05-12 Ecolab Usa Inc. Tissue dust reduction
WO2020247637A1 (fr) 2019-06-07 2020-12-10 Ecolab Usa Inc. Polymères en dispersion cationique hydrophiles pour améliorer la qualité d'impression et la solidité à l'eau
US11001748B2 (en) 2008-11-10 2021-05-11 Flotek Chemistry, Llc Method of preparing and using a drag-reducing additive having a dispersion polymer
US11560443B2 (en) 2019-09-11 2023-01-24 Buckman Laboratories International, Inc. Grafted polyvinyl alcohol polymer, formulations containing the same, and creping methods

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EP0248519A2 (fr) * 1986-05-30 1987-12-09 Petrolite Corporation Composition d'agent de floculation et sa méthode d'emploi
EP0364175B1 (fr) * 1988-10-14 1994-12-14 Hymo Corporation Procédé de préparation de polymères cationiques solubles dans l'eau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248519A2 (fr) * 1986-05-30 1987-12-09 Petrolite Corporation Composition d'agent de floculation et sa méthode d'emploi
EP0364175B1 (fr) * 1988-10-14 1994-12-14 Hymo Corporation Procédé de préparation de polymères cationiques solubles dans l'eau

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU710781B2 (en) * 1996-07-09 1999-09-30 Betzdearborn Inc. Process for the preparation of aqueous dispersion polymers
US5696194A (en) * 1996-07-09 1997-12-09 Betzdearborn Inc. Process for the preparations of aqueous dispersion polymers
US5614602A (en) * 1996-07-09 1997-03-25 Betzdearborn Inc. Process for the preparation of aqueous dispersion polymers
US5707533A (en) * 1996-07-09 1998-01-13 Betzdearborn Inc. Process for the preparation of aqueous dispersion polymers
WO1998001491A1 (fr) * 1996-07-09 1998-01-15 Betzdearborn Inc. Procede pour la production de polymeres en dispersion aqueuse
US5738794A (en) * 1996-10-03 1998-04-14 Cytec Technology Corp. Cationic water-soluble polymer preciptation in salt solutions
US5733462A (en) * 1996-10-03 1998-03-31 Cytec Technology Corp. Cationic water-soluble polymer precipitation in salt solutions
US5792366A (en) * 1996-10-03 1998-08-11 Cytec Technology Corp. Aqueous dispersions
US5843320A (en) * 1996-10-03 1998-12-01 Cytec Technology Corp. Aqueous dispersions
US5696228A (en) * 1996-10-03 1997-12-09 Cytec Technology Corp. Process for producing substantially dry polymer particles from aqueous dispersions
US6702946B1 (en) 1996-10-03 2004-03-09 Cytec Technology Corp. Aqueous dispersions
US5919854A (en) * 1996-10-03 1999-07-06 Cytec Technology Corp. Process for preparing aqueous dispersions
US6608124B1 (en) 1996-10-03 2003-08-19 Cytec Technology Corp. Aqueous dispersions
US6013708A (en) * 1996-10-03 2000-01-11 Cytec Technology Corp. Cationic water-soluble polymer precipitation in salt solutions
US6664326B1 (en) 1996-10-03 2003-12-16 Cytec Technology Corp. Aqueous dispersions
US6020422A (en) * 1996-11-15 2000-02-01 Betzdearborn Inc. Aqueous dispersion polymers
EP0915107A1 (fr) * 1997-11-04 1999-05-12 Elf Atochem S.A. Dispersions aqueuses salines de polymères hydrosolubles contenant un dispersant amphiphile à base de polymère cationique ayant des motifs hydrophobes
FR2770527A1 (fr) * 1997-11-04 1999-05-07 Atochem Elf Sa Dispersions aqueuses salines de polymeres hydrosolubles contenant un dispersant amphiphile a base de polymere cationique ayant des motifs hydrophobes
US6221957B1 (en) 1997-11-04 2001-04-24 Elf Atochem S.A. Aqueous saline dispersions of water-soluble polymers containing an amphiphilic dispersant based on a cationic polymer containing hydrophobic units
US6225395B1 (en) 1997-11-04 2001-05-01 Elf Atochem, S.A. Aqueous stable dispersions based on water-soluble polymers containing a cationic dispersant comprising hydrophobic units
KR100294785B1 (ko) * 1997-11-04 2001-07-12 베아트리체 델로스탈 소수성단위함유양이온성고분자기제의양친매성분산제를함유하는수용성고분자의수성함염분산액
US6531531B1 (en) 1998-08-24 2003-03-11 Green Technology Inc. Method and composition of a hydrophilic polymer dispersion containing an inorganic flocculant to be used for the treatment of waste water
WO2000011052A1 (fr) * 1998-08-24 2000-03-02 Green Technology Inc. Procede et composition de dispersion de polymeres hydrophiles contenant un floculant inorganique destine au traitement des eaux usees
US6630530B1 (en) * 1998-08-24 2003-10-07 Green Technology Inc. Method and composition of a hydrophilic polymer dispersion containing a colloidal silica to be used for the retention aids of fine particles in papermaking system
WO2000011053A1 (fr) * 1998-08-24 2000-03-02 Green Technology Inc. Composition de dispersion polymere hydrophile contenant une silice colloidale, utile en tant qu'agent de retention de fines particules dans un systeme de fabrication de papier, et procede associe
WO2000069938A1 (fr) * 1999-05-12 2000-11-23 Creavis Gesellschaft Für Technologie Und Innovation Mbh Copolymeres microbicides
US6365052B1 (en) 2000-03-21 2002-04-02 Nalco Chemical Company Very high molecular weight cationic dispersion polymers for dewatering animal farm wastewater
US6398967B2 (en) 2000-04-20 2002-06-04 Nalco Chemical Company Method of clarifying water using low molecular weight cationic dispersion polymers
US6517677B1 (en) 2000-04-20 2003-02-11 Ondeo Nalco Company Method of improving retention and drainage in a papermaking process using low molecular weight cationic dispersion polymers
FR2815635A1 (fr) * 2000-10-23 2002-04-26 Snf Sa Dispersions aqueuses d'un polymere hydrosoluble, procede pour leurs preparations, et leurs applications
WO2002034796A1 (fr) * 2000-10-23 2002-05-02 Snf S.A. Dispersions aqueuses d'un polymere hydrosoluble, procede pour leurs preparations, et leurs applications
WO2003085232A1 (fr) 2002-04-03 2003-10-16 Nalco Energy Services, L.P. Utilisation de polymeres de dispersion comme reducteurs de frottement dans des liquides de fracturation aqueux
US7091273B2 (en) 2002-05-07 2006-08-15 Akzo Nobel N.V. Process for preparing a polymer dispersion
US7220339B2 (en) 2002-05-07 2007-05-22 Akzo Nobel N.V. Process for preparing a polymer dispersion
CN100386363C (zh) * 2002-06-27 2008-05-07 湖北省化学研究所 高悬浮力水溶性防锈研磨液
US7641766B2 (en) 2004-01-26 2010-01-05 Nalco Company Method of using aldehyde-functionalized polymers to enhance paper machine dewatering
USRE44936E1 (en) * 2004-01-26 2014-06-10 Nalco Company Aldehyde-functionalized polymers
USRE45383E1 (en) 2004-01-26 2015-02-24 Nalco Company Method of using aldehyde-functionalized polymers to enhance paper machine dewatering
US7901543B2 (en) 2004-01-26 2011-03-08 Nalco Company Aldehyde-functionalized polymers
EP2363528A1 (fr) 2004-01-26 2011-09-07 Nalco Company Polymères à fonction aldéhyde et leur utilisation pour améliorer la déshydratation d'une machine à papier
US8900641B2 (en) 2006-12-28 2014-12-02 Nalco Company Antimicrobial composition
CN101016359B (zh) * 2007-03-06 2010-06-02 山东东方华龙工贸集团有限公司 阳离子型聚丙烯酰胺水乳液的制备方法
US10145067B2 (en) 2007-09-12 2018-12-04 Ecolab Usa Inc. Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking
US11001748B2 (en) 2008-11-10 2021-05-11 Flotek Chemistry, Llc Method of preparing and using a drag-reducing additive having a dispersion polymer
WO2010093847A1 (fr) 2009-02-13 2010-08-19 Nalco Company Composition antimicrobienne
US8288502B2 (en) 2009-12-18 2012-10-16 Nalco Company Aldehyde-functionalized polymers with enhanced stability
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EP0657478A3 (fr) 1995-07-26
JPH07238121A (ja) 1995-09-12
CA2137637A1 (fr) 1995-06-10
AU8024794A (en) 1995-06-15
BR9404916A (pt) 1995-08-08
KR950018176A (ko) 1995-07-22

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